Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 468 · 40 questions

Engineer's tip (Find the topic, use the idea): Find the topic: design process, force, machine, lever, structure, material, bridge or scale. Use that lesson’s rule — what is in the middle, load × distance = effort × distance, work = force × distance, real = drawing × scale. Write the calculation before you answer.

1. 1.⚖️ Which class of lever is a seesaw? (a) class 3 (b) class 2 (c) class 1
2. 2.⚖️ What is the pivot point of a lever called? (a) the axle (b) the load (c) the effort (d) the fulcrum
3. 3.🔍 Which is the odd one out? (a) use a new load each time (b) skip writing results (c) repeat each test (d) guess, do not measure
4. 4.🛞 More or less friction: powder on a carrom board? (a) less friction (b) more friction
5. 5.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “build it with straws”? (a) build it with straws (b) choose and draw one
6. 6.True or false: to share the work fairly is poor teamwork. (a) True (b) False
7. 7.📐 A model car is drawn so that 1 cm stands for 30 cm. The car is 3 cm long in the drawing. How long is the real car, in centimetres?
8. 8.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
9. 9.Which of these uses a beam? (a) a truss bridge side (b) a slab over a canal (c) a curved stone doorway (d) a planetarium roof
10. 10.Which of these is a pulley? (a) a flagpole rope wheel (b) a road up a hill (c) a truck loading ramp (d) a seesaw
11. 11.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) balanced (c) doubled (d) unbalanced
12. 12.🔍 Which is the odd one out? (a) a crane lifting cable (b) a table leg (c) a tent guy rope (d) a suspension cable
13. 13.🔍 Which is the odd one out? (a) keeping a simple shape (b) building tall and narrow (c) having a wide base (d) using flexible joints
14. 14.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 2 N, a wooden plank 5 N, a carpet 8 N, sandpaper 9 N. Which surface gave the least friction? (a) a carpet (b) sandpaper (c) a wooden plank (d) a glass sheet
15. 15.🏋️ A smooth ramp is 2 m long and rises 1 m. What effort pushes a 1600 N box up it, in newtons? (ideal ramp, no friction)
16. 16.🔍 Which is the odd one out? (a) a table leg (b) a stone in an arch (c) a hanging lamp chain (d) a brick at a wall base
17. 17.True or false: an axe blade is a lever. (a) False (b) True
18. 18.True or false: a switch contact needs an electrical conductor. (a) False (b) True
19. 19.Which job is a spanner for? (a) make a hole in wood (b) tighten a nut (c) turn a screw (d) grip and bend wire
20. 20.📐 A beam is 540 cm long. How long is it in metres? =
21. 21.📋 Criteria are … (a) the limits on money (b) the tools you use (c) the team names (d) goals a design must meet
22. 22.📋 Criterion: the model bridge must hold at least 700 g. In the test it held 700 g. Does it meet the criterion? (a) No (b) Yes
23. 23.🏋️ A machine lifts a load of 600 N when you push with 100 N. What is its mechanical advantage (MA)?
24. 24.True or false: “the longest spans of all” is an arch bridge. (a) True (b) False
25. 25.What does the recorder do? (a) shares out the jobs (b) keeps the team on track (c) cuts and joins parts (d) keeps the design notes
26. 26.🔍 Which is the odd one out? (a) dry wood (b) iron (c) clay pottery (d) glass
27. 27.True or false: a chemical engineer designs satellites. (a) True (b) False
28. 28.⚖️ On a seesaw, a heavier child should sit … (a) on the pivot (b) farther from the pivot (c) anywhere (d) closer to the pivot
29. 29.🪝 What does a single fixed pulley change? (a) the colour of rope (b) the direction of pull (c) the size of the load (d) gravity
30. 30.⚙️ Which simple machine is a bottle cap? (a) pulley (b) screw (c) wedge (d) lever
31. 31.🪝 A bucket weighing 270 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
32. 32.🏋️ Can a simple machine reduce the work done? (a) no, work stays the same (b) yes, always (c) yes, by half (d) only on Mondays
33. 33.📋 For a model bridge challenge, is “carry 10 coins” a constraint or a criterion? (a) a criterion (b) a constraint
34. 34.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
35. 35.🛠️ A scientist asks “why does it happen?”. An engineer mostly asks … (a) what is for lunch? (b) who won the match? (c) why is the sky blue? (d) how can we build it?
36. 36.🔢 To follow the engineering design process, which is the FIRST step? (a) Plan (b) Ask (c) Test (d) Improve
37. 37.🪝 A wheel and axle is a big wheel fixed to … (a) a loose rope (b) a flat ramp (c) a sharp wedge (d) a smaller rod (axle)
38. 38.🌉 Which bridge type: “stones squeezed together”? (a) suspension bridge (b) arch bridge (c) beam bridge
39. 39.🔢 To build and test a straw bridge, which is the FIRST step? (a) read the challenge rules (b) strengthen the weak part (c) build it with straws (d) choose and draw one
40. 40.Which of these is caused by gravity? (a) pedalling a cycle (b) an apple falls down (c) lifting a school bag (d) rubbing hands warms them

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